Massey Ferguson 7485

Last Updated: July 2024

Overview

The Massey Ferguson 7485 is a powerful and efficient row-crop tractor designed for demanding agricultural tasks. It features a Sisu 66CTA turbocharged and intercooled diesel engine with 6 cylinders and a displacement of 402 cubic inches, delivering an impressive maximum power output of 171.9 hp at the PTO. The Dyna-VT continuously variable transmission (CVT) provides seamless and infinite speed control in both forward and reverse ranges. With an operating weight of 16,600 lbs, the 4x4 MFWD 4WD chassis offers excellent traction and stability. The hydraulic system boasts a pump flow capacity of 30.5 gal/min and a relief valve pressure of 2610 psi, capable of exerting a maximum force of 13,915 lbs through the three-point hitch. Multiple wet disc brakes, hydraulically operated by foot pedals, ensure reliable stopping power. The tractor is equipped with a cab for operator comfort and features advanced emission controls to meet environmental standards.
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Key Specifications

Category: Row Crop

Power Output: 171.9

Transmission: Dyna-VT (CVT)

Drive Type: 4WD

Operating Weight: 16600

Fuel Type: Diesel (Ultra Low Sulfur Diesel)

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Massey Ferguson 7485 vs. Similar Tractors

Power Output
Average
Greater than 55% of similar tractors.
Hitch Capacity
Average
Greater than 54% of similar tractors.
Operating Weight
Average
Greater than 61% of similar tractors.

Technical Specifications

Engine

Manufacturer
Sisu
Model
66CTA
Cooling Type
Liquid-cooled
Cylinder Orientation
-
Valve Configuration
-
Fuel Type
Diesel (Ultra Low Sulfur Diesel)
Induction Type
Turbocharged intercooled
Cylinders
6
Displacement (ci)
402
Bore (in)
4.252
Stroke (in)
4.724
Rated RPM
2200
Power Output (hp)
171.9

Transmission

Type
Dyna-VT (CVT)
Forward Gears
Infinite (2-range)
Reverse Gears
Infinite (2-range)
Total Gears
-

Dimensions

Length (in)
205.9
Width (in)
80
Height (in)
122
Operating Weight (lb)
16600

Power Take-Off (PTO)

PTO Type
-
PTO Speed 1 (rpm)
-
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x4 MFWD 4WD
Drive Type
4WD
Steering Type
Power
Coolant Capacity (qts)
-
Front Tire Diameter (in)
28 (from 14.9R28)
Front Tire Width (in)
-
Rear Tire Diameter (in)
38 (from 18.4R38)
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Ag (Agricultural)
Manufacture - End Year
2012
Hitch Type
Cat 3/3N
Hitch Category
Category 3
Hitch Position
Rear
Hitch Capacity (lb)
13915 lbs (at 24 inches)
Operator Station Type
Cab (from height top of cab)
Starter Type
Electric (from engine starter volts)
Brake Type
-
Hydraulic System Type
Closed center

Test Results

Nebraska Tractor Test Laboratory - Test Date: June - September, 2007

Maximum Power and Fuel Consumption

  • Rated Engine Speed: 145.5 HP (108.5 kW) at 2200 rpm
  • Fuel Consumption at Rated Speed: 8.63 Gal/hr (32.65 l/h) with a fuel efficiency of 0.422 lb/hp.hr (0.257 kg/kW.h) and 16.86 Hp.hr/gal (3.32 kW.h/l)
  • Standard Power Take-off Speed: 168.7 HP (125.8 kW) at 2034 rpm with a fuel consumption of 9.26 Gal/hr (35.05 l/h)

Drawbar Performance

  • Maximum Power: 136.4 HP (101.7 kW) at 2002 rpm with a drawbar pull of 11805 lbs (52.5 kN) and a speed of 4.33 mph (6.97 km/h)
  • Fuel Consumption at Maximum Power: 0.486 lb/hp.hr (0.295 kg/kW.h) with a fuel efficiency of 14.62 Hp.hr/gal (2.88 kW.h/l)
  • Power at Reduced Engine Speed (Turtle 10 Gear): 130.2 HP (97.1 kW) with a drawbar pull of 6245 lbs (27.8 kN) at 2002 rpm

Torque and Engine Performance

  • Maximum Torque: 562.9 lb.-ft. (763.2 Nm) at 1400 rpm
  • Torque Rise: 62.1% with a torque rise at 1750 engine rpm of 47%

Hydraulic Performance

  • Maximum Force Exerted: 13915 lbs (61.9 kN) through the whole range
  • Pump Delivery Rate: 30.5 GPM (115.6 l/min) at minimum pressure
  • Hydraulic Power: 38.7 HP (28.9 kW) at delivery pressure of 2265 psi (156 bar)

Sound Level

  • Tractor Sound Level with Cab at 1200 rpm: 62.0 dB(A) engaged, 60.4 dB(A) disengaged
  • Tractor Sound Level with Cab at 2250 rpm: 66.5 dB(A) engaged, 66.2 dB(A) disengaged



Nebraska Tractor Test Lab. (2007). Nebraska Summary: S613 Massey Ferguson 7485. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2927

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